Hot and cold stomach may be caused by gastroenteritis, excessive gastric acid secretion, and vegetative nerve dysfunction. 1. Gastroenteritis: Gastroenteritis is an acute or chronic inflammation of the gastrointestinal mucosa caused by a variety of factors, and the main symptoms are abdominal pain, diarrhea, abdominal discomfort, fever, profuse sweating, cold and clammy skin. If it is caused by gastroenteritis, you can use antibiotics and other treatments, usually need to pay attention to dietary hygiene, avoid eating spicy stimulating food, quit smoking and avoid alcohol, avoid taking strong tea, strong coffee and other stimulating drinks. 2. Excessive secretion of gastric acid: excessive secretion of gastric acid will stimulate the local mucosal tissues, thus triggering symptoms such as stomach pain, bloating, burning sensation in the abdomen, etc. If the symptoms are caused by excessive secretion of gastric acid, the stomach will stimulate the local mucosal tissues. If the symptoms are caused by excessive secretion of gastric acid, you can follow the doctor’s instructions to use omeprazole, cimetidine and other drugs to treat. 3. Phytoneurological dysfunction: Phytoneurological dysfunction refers to multi-system dysfunction caused by phytoneurological dysfunction, which is manifested in the digestive system and the nervous system, such as abdominal pain, abdominal distension, numbness and itchiness of the skin, fever or a feeling of coldness and heat in the whole body, and so on. If the symptoms are caused by vegetative nervous system dysfunction, you should pay attention to the combination of work and rest, cultivate good habits, and work and rest on time. There are many reasons why the stomach is hot and cold, it is recommended to go to the hospital in a timely manner to clarify the cause of the disease and then targeted treatment.